Die-sinking machine



Sept; 18,1923. 'L-wma w. E. sARGEN-r DIE SINKING MACHINE Original Filed Oct. 10, 1918 5 Sheets-Sheet l z2@ 102 4.@ z L l f Ma Sept.; is, w23..

VV. E. SARGENT DIE SINKING MACHINE original Filed Oct. l0, 1918 5 Sheets-Sham'l 2 [Owe/nm sept. 18,1923.

` 1 W. E. SARGENT DIE sxNxING MACHINE 5 Sheets-Sheet 5 original Filed ot. l0. 1918 Sept; i 8

W. E. SARGENT DIE SINKING MACHINE riginal Filed oct. 1o, 1918 Y5 sheets-sheet 4 HASS Sept. 18 1923.

, W. E. SARGENT DIE sINKING MACHINE 5 Sheets-Sheet 5 original Filed oct. l1o. 1918 ,www nm www.

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intatte xiii .wanna E. Sanoma?, or DETROIT, MICHIGAN.

` DIE-SINKING MACHINE.

Application lled' October 10, 1918, Serial No.r 2'57,677. Renewed July 11, 1923.

'To @ZZ/whom 15mm/concern.' I

Be it known thatI, VALTER E. SARGENT,

a citizen ofthe United States, and resident 'of Detroit, in the county of Wayne andf 4State of Michigan, have invented-a new and useful Improvement in Die-Sinking `Machimes; of which the following is a speciiy.

. cation. .Il g

This invention relates to a machine for sinkin or engraving dies for the purpose of Irep o ducing the` same from a pattern, either incameo or intaglio', thedsaid machine being compact, automatic, accurate and expeditious in operation."

One object is to provide a machine of this character which embodies an improvedconstructionpof mechanism for cau'sing the engraving tool to traverse a perpendicular surface for the production ofA dies which include vertical wa'lls in their contour.

Another object consists; in providing a machine of this character in which means is included for cutting either right or left hand# dies from a singlegiven pattern, by 25. regulating the relative speed of movement of the pattern holder and the tdol carrying frame. r l

A further object consists in providing 4' certain improvements in the form, construction, arrangement and operation of the several parts whereby the above named andv other radvantages mayV be effectively attained. i i A practical embodiment of my invention is represented in the accompanying draw- "ings, in which Fig. 1 represents a top plan view of the machine. 1

Fig. represents a side elevation of fthe machine, partly broken away, J

Fig. 3 represents a rear elevation ofthe machine," partly broken away? Fig.' 4 represents a detail front elevation of the machine. i" Fig. 5 representsa detail vertical section taken substantially in vthe plane of the Vline V-V of Fig. 2, looking inthe direction of fthe arrows. "v 'l J Fig. 6 represents a detail section taken substantially in the plane yof 'the line 'VI- -`VI of Figi 1, looking in the direction of the arrows. Fig. 7 represents a similar view taken substantially in {fthe plane of the line is fixed upon the end 'of tally mounted in the main gear case 5, and

VII-VII of Fig. `1, looking in the direction of the arrows.

Fig..8 represents a detail vertical Lsection taken substantially in the plane of the line VIH-VIII of Fig. l, looking in the direction of the arrows. Fig. 9 represents a detail partly in elevation, taken substantially in ,the plane of the IX of Fig. the direction of the arrow.

Figs 10 and 11 represent detail vertical scetions, partly in elevation, through the gearr'case of the main driving mechanism.

Fig. 12 representsa detail horizontal 4section through the same, and 'l Fig. 13 .represents a Idetail elevation,

partly in section, "of the pawl and ratchet [mechanism for feeding the vtool carrying frame.

' The main drive Aof the machine comes "from the motor denoted by 1, ((see Fig. 3),

12), that meshes with another gear 3 whic a shaft 4 horizon- This worm enhaving a wormy 6 thereon.

gear 7 (see Figs. Sand 10) gages a worm which is xed that is horizontally mounted in casej 5 below and at rl shaft 4. j

A pair of oppositely facing bevel pinions 9, 10 are loosely mounted upon the shaft 8 and are provided with inwardly extending the gear ght anglesy to the `clutch 'faces fitted'4 for engagement with complementaryp faces upon the clutch 11 which is keyed for longitudinal movement upon but/against rotary movement upon the shaft 8. From the foregoing description it will be seen that when the clutch `11 is engaged with one of the pinions 9, 1Q the said.

inion will be rotated .with the shaft 8 under the influence of the motor, while 'the said shaft will turn freely 'in the other pinion. I

These two pinions are continuall in mesh Vwith a third pinion 12 that is ed to a. sleeve 13 which is loosely vertical shaft 14;" the .said l shaft being journaled in a bracket 15 that is bolted to the top of the gearfcase 5. The upper end of the sleeve 13 is fashionedto constitute a clutch face for coaction with acorresponding face on another sleeve 16 that vertical section,

W1, looking in mounted upon the upon the end of a shaft 8 b C is keyed for sliding movement upon but` against rotary movement upon the shaft 14* (see Fig. 11). This-'sleeve 16 may be manually operated so as to bring it into and out of engagement with the sleeve 13,V and a set screw 17 is provided for temporarily securing the sleeve 16 in the desired position.

Y When thei sleeve 16 is clutched to the sleeve motor 1, as clearly seen in Figs. 2 and 3.

' The shaft 20 has a helical gear 24 splined for lsliding longitudinal movement thereon but against rotary movement thereon, the key-way in the shaft 20 extending substantially throughout its length. This gear 24 mates with a similar gear 25 (see Fig. 8)

that is fixed upon a screw 26 which iside- -upon fthe screw 26 which latter is journale signed to impart reciprocating movement to the support for the tool carrying. frame, as will be hereinafter fully described. At this juncture it `may ybe remarked that the screw 26 will be rotated, through `the Connection mentioned, by the motor 1, and that its direction of rotation may be reversed .joy moving the clutch 11 from engagement with one of the pinions 9, 10 into engagement with the other of said pinions. j

A base -27 is. vslidably mounted on a bed 28 (see-Fig. 3) which has under-cutprojections 29 and 30:designed for ceaction with the correspondingly formed portions of the base 27. The customary f wearing strip 31, with itsfadjusting screw 32, may be provide intermediate the under-cut projection 30 andthe adjacent part of the base 27, if desired. 1 i v A sleeve 33 (see Figi 8) is slidably keyed` in the bed 28; thesaid sleeve bleing rotatably carried in the lower part of the base 27 andkixed against bodily movement therein or therefrom by al collar 34 that is pinned to one end of the said sleeve'and a bevel gear 35 whichl is formed on theotherl end of the sleeve. A nut 36 is attached to the base 27 ,and threaded upon the screw 26.

From this construction it will. be seen that the rotation. of the screw 26 will, through the nut l36, impart sliding motion to? the base 27 upon the, bed 28, and that the direction of this sliding movement of the base will be dependent upon the direction of rotationl of the screw 26.

The support for the tool carrying frame also includes'a stanchion 37 (isee F igs.,f2 and 8) on the vertical face of which is mounted vand 55 (see Figs. 1 a d 2) while a cap screw a` vertically slidable carriage 38. The means of connection between the saidvcarriage and the stanchion 37 consists of two pairs of bolts 39, 39l and 40,40 which pass horizontallythrough the stanchion 37 and 70 have :'I'heads 41, 41 and 42, 42 that are slidably fitted in under-cut slots 43 and 44 (see Fig. 1) fashioned in the carriage 38. An adjusting rod 45 (see Fig. 8) has its lower end .swiveled in the base 27, and its intermediate portion threaded into the carriage 3 8, as clearly shown* at 46,1 so that the rotation of the said rod will serve to move the carriage 38 and its dependent parts vertically toward and away'from the base 27. The upper end ofthe rod 45 is squared for the reception of anfordinary crank to vfacilitate the manual operation thereof. The carriage 38 acts as the immediate {means of support for the tool carrying frame which consists of two main members denotedby 47 and 48 respectively' (see Fig. 2). The member\ 48 consists of an open frame-work as clearly shown in Fig. 1, in which frame-work the spindles 49, 50 of the tracer and cutting 'tool respectively are mounted, in any well known and approved manner. This frame-like member 48 also supports Van independent motor 51 which may serve vas a means'for rotating the tracer 95 and cutting tool, when desired, through the medium of belts 52 and 53, respectively. The member 48 is pivotally secured to the member 47 by oppositely disposed pivots 54 56 passes through the lower portion of the L. member 48 and is threaded in the Smember 47 in order to lock the member 48 to the member 47 in any desired adjustment about the pivots v54 and 55. A filler 57 of suitable size and configuration may be v employed to occupy the space between the members 47 and 48 immediately below the locking screw 56. Another :screw 58 is provided for limiting the downward movement of the member 48 `110 abdut its pivot, and this screw is threaded in d a plate 59 boltedontop ofthe member 48,

while its lower end 60 is adapted to impinge against a bracket 61 which is secured to the front of thecarriage .38. vA suitable'lock nut 62 servesl to secure the screw 58 in any desired adjustment. By thisaarrangement the depth of cpt permitted the toel carried the member 48 may be predetermined.

The machine includes mechanism for v fulcruming thevtol carrying frame as a whole alternately at two different points,a

both at the same side of, andone below and the other above the face of the pattern, so

that the tracer and cutting 4,1001 may freely l oscillate in compliance withthe' requirements of the configuration of the` pattern and so that a pushaor pull, as the vease may be, is susceptible of being exerted upon the tracer and cutting tool-in a. direction at an angle 1w above the face of the pattern when a pull is being exerted and vin a direction at an angle belowthe said, face when a push is being exerted, in order to cause the tracer and cutter to traverse, and the latter to cut, faces at right angles to the plane of travel of the cutter. This effect is obtained by providing the member 47 of the tool carrying frame with sets of upper and lower pivot pins 63, 63, and 64, 64 respectively (see Figs. 1,' 2, 5). The points of these pivot pins take into recesses formed in the ends of upper and lower rocking bars 65 and 66 respectively. The bar 66 is mounted upon lower members 67, 67 of the carriage 38, and its mounting is such that it is prevented from moving longitudinally of the said member 67, 67 by flanges 68, 68 which are formed integral with the bar 66 and depend along the outer faces of the members67, 67; while the har 66 is permitted to have a certain lateral bodily movement upon the members 67. The upper bar 65 is identical in form with the bar 66 and it is supported in place against upper members 69, 69 of the carriage 3,8, which members correspond in construction to the-members 67, 67. The engagement of the bar 65 with the members 69, 69 is the samemin all'respects as the engagement of the bar 66 with the members 67, 67.

Mechanism is provided for alternately locking the upper and lower rocking bars 65, 663 against lateral bodily movement'so that the tool carrying frame 47, 48 may at one time pivot on the pins 63 and at another time pivot on the pins 64. This mechanism comprises a pairl of cone faced clutch members 70, 70 which are mounted for vertical sliding movement in the carriage 38. The

- bar will have lateral' said clutch members are bored out in order to permit the passage therethrough of a pair of shafts, 71, 7l which are journaled in the lower and upper members 67, 67 and 69, 69 of the carriage 38. Each of these shafts 71, 71 has a male nut which nuts are designed to mate with female threads formed into the bores of the mem bers 70, 70. It will be seentha't, as a. -result of this arrangement, when the shafts 71, 7l are rotated in one direction the members 70, will be forced rocking bar 66, as clearly shown while the reverse rotation of the shafts 71, 7l will engender opposite movement in the members 70, 70, causing them to be freed from the rocking bar 66 and to be brought into gripping contact with the upper rocking bar 65. When the clutch members are inen'gagement with the lower br 66, the tool" carrying frame will fulcrum about the pins 64, 64 as its pivot point, and, during the oscillation of the frame about the said pins, the upper rocking bodily movement in Fig.' 5

72, 72 pinned thereto automatically into eri-- gagement with complementary seats fash- Y ioned in the with respect to the members 69, 69 of the carriage 38. When the members 70, 70 are clutched to the upper bar 65, the tool carrying frame will fulcrum about the pins 63, 63 and the lateral bodily movement will be permitted to the lower bar 66.

This motion of the members 7 0, 70 is automatically accomplished by suitable connections with t-he source of power already described. This connection is made as follows A bevel gear 73 (see Fig. 8) is mounted in the base 27 and is fixed to a tube 74 that is keyed for telescopic driving engagement with a. solid shaft 75, which is journaled in a boss 76 secured to the carriage 38. Another bevel gear 77 is fixed to the upper end of the shaft and meshes with a corresponding gear 78-tl1at is rotatably mounted v upon a transverse shaft 79 (see Figs. 1 and 3) which is mounted in brackets 80, 8O secured to the top of the carriage 38, The gear 78 'has a hub 81 from which projects a lug 82 which is fixed to one of the lates 83 of a friction slip-clutchtby a bo t 84. One member of this clutch, 85, is splined to the shaft 79, while a coil spring 86 and a compression nut 87 serve to yieldingly .hold the clutch plates i'n frictional engagement through the intervening discs, in the usual manner. A pair of helical gears 88, 88 are keyed to the shaft 79, but have a limited sliding movementl thereon through the resiliency of pairs of coil springs 89, 89 which engage opposite sides of the said gears and abut collars 90, 90 fixed to the said shaft 79. These helical gears 88, 88, mesh with corresponding gears 91, 91 that are fixed to the upper ends of the shafts 71, 71.

Hence it will be seen that, as the screw 26 is rotated for the purpose of actuating the tool carrying frame support 27, 37,' as already described, the clutch members 7 0, 70 are simultaneously actuated and that, as the direction of rotation of the screw 26 is periodically reversed for reciprocating the tool carrying frame support 27, 37, the direction of movement of the members 70, 7 0 is simule taneously reversed. In this connection the .parts are vso arranged and timed that when the toolcarrying frame support 27 37 starts to move to the right, in Figs. 2 and 8, the members 7 0, 70 will be brought into clutching engagement with the lower rocking bar, 66 so that the tool carrying frame 47, 48 willl fulcrum about the pins 64, 64. It should also be remarked that this movement of the members 7 0, 70 takes place immediately after the screw 26 starts to rotate and that, once the said members have become set in engagement with one of the rocking'bars 65, 66, the clutch 82, 83, slips during the remainder of the time the screw 26 is rotated in the same direction. v As soon as the direction of rotation of the screw 26 is reversed,

11thr first one and then the other of the rocking bars 65, 66 as the direction of rotation of the screw is reversed.

rI`lie tool carrying so constructed as to have the capacity of 27 reciprocates.

governing the above described mechanism which reciprocates it, and this is accomplished by providing thebase 27 with a pair of stops 92 (see Fig. 2) which have T-lieads slidably mounted in an under-cut groove 93 formed in the side of the base 27. Each of the said stops takes, the form of a thumb nut which is threaded upon the shank of the T-lieads, so that the stops may be moved to and clamped in predetermined positions along the groove 93.

rIhe location of these stops is such that they are calculated, during the reciprocation of the base 27, to engage the upper end of a clutch shitting lever 94 pivoted at 95 in a bracket secured to one side of the bed 28. A cross bar 96 (see Fig. 9) is carried in the lower end of the lever 94, the ends of which bar are provided with depending arms 97, 97, that are pinned to a rock shaft 98 which is journaled in bearings 99, 100 secured to the interioi of the main machine frame 23 adjacent the gearg'cas'e 5. A droparm 101 is" pinned to the outer end of the shaft 98 and has its lower end connected to a link 102 (see Fig. l2) which'latter has its opposite end fixed to an up-standiiig arm 103 which is secured against rotation on a stub shatI 104 (see Fig. 12) that is mounted in the side of the gear case 5. has its inner end provided with a finger 105 that engages the clutch 11 in the usual manner.

Asa result of the construction just described, it will be evident that when the lever 94' is'swung iii`one direction it will throw the clutch 11 into locking relationship with one of the pinions 9, 10, and that when the said lever is thrown in the reverse direction it will causethe clutch 11 to mate with the other said pinions. This alternate swinging movement of the lever 94 is eiiected by the contact therewith of the stops 92, 92 which periodically engage it as the base By adjusting7 the stops 92 along the groove 93, so as to varytheir separation, the length of stroke of the base 27 may be correspondingly varied since the contact of the said stops and the lever 94 controls its reversal.

In order to insure a rapid and clean engagement and disengagement of the 'clutch b 11 with aiid trom either one of the pinions frame support 27, 37 is This stub shaft 104' 9, 10, I provide a spring actuated auxiliary shifter 106 which is pivoted at 107 in a bracket. that is bolted to the gear case 5. This auxiliary lshifter is normally urged downwardly by a retraction spring 108, and has a bevelled nose which is adapted for co'- operation with the similarly formed end of the arm 103. By this arrangement, as the arm 103 is swung in vone'direction by the link 102, the nose of the shiter 106 will rise up to the apex of the end of the arm 103, and the instant it passes the said apex the spring 108 will impel it to travel rapidly down the opposite inclined surface of said end of the arm 103, thereby assisting in the swinging of the arm 103 so as to rapidly move the clutch 11 from engagement with one of the pinions 9, 10 positively into engagement with the other of said pinions, thereby insuring the regular and continued reciprocation of the base 27.

The ferred to as supporting the base 27 and stanchion 37 which constitute the support or the tool carrying frame, is-mounted upon the main machine frame 23 for a step-bystep movement in either direction across the top of the frame 23 and along a line of travel transverse to the reciprocating movement of the base 27. For this -purpose the bed 28 is mounted on rails 109, 110, 111, which are formed on the upper part of the frame 23, and which 'are itted for cooperation with depending ribs 112, 113, 114 on theV bedI 28'; the rib 112 being under-eut to serve the purpose of a gib, and the rib 114 being actually' provided with a gib 115. A wearing strip 116 and adjusting screw 117, similar to the parts 31, 32 already described, may be provided on the iib 112.

t In order to impart intermittent traveling movement to the bed 28, suitable connection is had with the motor 1. In this regard it will be recalled that the shaft 20 (see Fig. 3) has been described as being constantly rotated by the motor 1, through the bevel gears 18, 19 and the other members of the chain which serve as a connection between the said motor and shaft 20. It will also be understood that tation of the shaft 20 will be reversed by the engagement of the stops 92 with the gear shifting lever 94. 4. With these points in mind the immediate means for feeding the bed 28 across the main frame 23 will now be described.

The outer end of the shaft 20 carries a friction clutch (see Figs. 1, 2, 3) which comprises discs 118, 119 which are splined to the said shaft and an intermediate disc,

120 which is free for rotary movement on the shaft. Intervening friction facings or discs of leather or like material may be provided in connection with the clutch members 118, 119 and 120 in the usual manner. The

bed 28, which has already been rethe direction of roloose member 120 carries a lug 121, in which/f end, adjacent the arm 125,- av ratchet gear is pivotally securedkas at 122, one end of a y13.1, the said ratchet being fixed against rotalink 123, the other end of which link is tion on the screw. The periphery of the l ivoted, as at 124, to a rocking arm 125 (see ratchet is-provided with a double setl of '5 igs. 2 and 13) that is mounted .for oscillateeth .which are oppositely inclined, for 70 tion upon the yend of the feed screw 126 alternating engagement with Va pawl 132 Which is journaledjn opposite sides of the'V that is pivotally mounted in the .upper endI main frame 23 and lies below and at right of the rocking arm 125. This pawlis biangles to the screw 26. furcated tofform a-pair of points arranged An abutment yscrew 127 is mounteddn a sideby side, one of which -points lies in the 75 bracket 128 on sthe lside of the frame 23,- same plane as oneset of `teeth on the ratchet forl the purposeb of limiting the rocking 131 while the other lies in the same plane movement of the arm 125. Adjustment yof as the otherset of teeth.y llhusthe pawl thel screw 127 will serve to vary the field of may be -swung into operative engagement movement allotted to the arm 125. with either dset of teeth on the ratchet 131, 3U

'-From the construction just described it ,in an obvious 'mannerl Each complete cycle'- wlll appear that when the ,shaft starts Ito of oscillation of the arm 125 .which lncludes rotate in one direction it will svt/,ing` the one movement in each direction as already L rock arm 125, through Vconnecting linkage, described, rst pushes the ratchet, 131

20 lfirst in one direction forxa .short .distance throughl the action of the pawlil132, the dis- 35 of the/said clutch member; andthe extent transmitted to thefeed screw 126 will 'be @e Will be determined by the' adjustment of the *ratchet 131 the pawl 132 engages.l screyvv127. ln order .to insure that the clutch lThe feed screw- 126 is threaded into a may have s'uflicient. power to actuate the arm'l nut 133 lwhich isffast to the under side of 125, its spring 129 has aJ follow-up nut 130i the'bed 28; hence the rotation of the said et which is threaded on the shaft 20 for s uitscrew` will 'serve' to feed the bed slowly"- able adjustment.. l Y across the main frame 23 in a direction at After the arm 125 has completedthis cycle rightangles to` the movement of the base df movement or oscillation and abuts thef 27 upon which is mounted the tool carrying screw 127, the continued rotation of the lframe'. After the screw 126 has fed the bed 100 "shaft 20 will have no further effect upon it, 28 to the limit (of its movement in one dias theifriction clut'chf'118, 119, 120 will slip'. rection,' the pawl-'132 maybe flipped over ovvever, 'as' soon as the directi n, of rotaso as to enter theother set of teeth on the `tion of theshaft 2O is reversed, he rocking. ratchet 131, which will vcause thescrew 126- 40 arm i125 will again be actuated so as to exeto be rotated in the reverse direction by the y105 .cute an oscillation; at the -endof which oscilsame 'mechanism so as to feed it slowly ltionit will come to rest against the screw back across the machine. V 1 7, while the continuted rtatio of the The Work ordie to be 'cut isdenoted by shaft 20 inpthis4` direction will merely cause 134 (see Figs. 1, 2, 4 and 6l and is mounted the clutch 118` 119, 120 to slip, as already uponaduplex' support *which comprises an A11.0 described This procedure will continue as Iupper member 13 5and a lower memberl 136. long as the .machine is in operation. There- The member'136 has a central pivot pin 13,7l for inasmuch as the direction ofrotatiom which is received in a mounting 138 that is of the shaft 20,.s'.co'ntrolled by the 4moveintegrally formed -at the end of the 'main nient of the base 27, which reverses the s'aid frame 23, so that the lower member 136 may 115 shaft when it reachesthe endof each strolge, be rotatably adjusted about the said pivot 27. The purpose ,of this construction, and member 136 has 'its upper face concaved in perat'on just described is, as alfreaddylinorder to fcradle ,the upper member 135, 120 tima'tl, to feed the bed 28 step by step which constructidn enables the-member 135 across the mvachine transversely to the move. to be arcuately adjusted in a plane at right r ment of the base 27,' so that the tracer and angles to the plane-of adjustment of thei cutting tool may operate successively upon member 136. A pair of cap screws 139, 139I all portions of t e pattern and die to -be cut, are threaded into the member 13p and ride') 11"?5 Las will .be he inafter described; and I in curved slots -110 140 frmed inf4 the Y shall now proceed to set forth the mechanism mounting 138, in 'oiZder to fix the member Y bv which the lrocking movem/ent of the arm 136 in any desired adjustment; While a 125 serves to impart motion to the bed 28. pairfof cap, screws 141', 141, are threaded l The screv7 `126 carries on its protruding into the member 135, and ride in slots 142, 130

\ will be seen that 142 ormedin the member 136in order lto secure the member.. 135 in its) desired adjustment.Q rEhe member 135 has under-cut grooves 143, 143 fashioned in its upper face fk 5 for the reception of the customary bolts 144, .144, which, together with the usual straps-145, 145 serve to fasten the work 134 in osition. i j

ince the work 134 is fixed in position it A y the combined movement of the reciprocating base 27. and the intermittently fed bed 28 will cause the cutting tool t 146 to traverse the entire surface of the die to be cut. f'

mounted on a member 148 which is identical with the member 135. This member 148 v is also cradled in a lower member149 Which is identical with the member 136. Cap

screws 150,"150, which correspond with the `25 ber 14,8 yin the desired adjustment.

30 teris also provided with undercut grooves 154, 154, that are. identical with the grooves 143, 143. In order to predetermine the adj ustment of themembers 135 and 148 in the .members r136 and 149 respectively, suitable gages 136* and 149* are provided, asfolearly rshown in Fig. 4.

\ c Thus it will be seen thatithe mounting of the pattern corresponds exactly withv themounting of the die save in one particular i v40 which resides in the fact that the machine incorporates mechanism for feeding (the pattern, (if desired, during its operation. To `this end the member 149 of the pattern ysupport rests'upon a carriage 155, which T- 'has depending ribs 156, 157 that rideupon the .main frame 23 and engagev under-cut rails 158, 159 formed on the top of the lat- `ter. A wearing strip 160 and` itsadjusting screw 161,@such as already described, may

be used in conneotionfwith the rib 157 and `rail 159. .l A Anut 162 is fastened to the bottom ofthe: carriage 155 and is threaded on a feed screw 163 that isjournaled in the main frame 23 parallel to the feed screw 126., Asprocket gear 164is rotatably mountedon 'the protruding Vend of the, screw 163 and. lies .against a collar '1,65 that is keyed to the said vscrew. This collar -has 'a recess which is f parallel fto its' axis and 'in which isA slidably n mountedva locking-pin 166 which isJ adapted to be actuated Zby a thunib nut 1674 whereby 1t may be caused .to enter or to be with-V A drawnfroma holer 168 inthe sprocket 164.

' The pattern` 1s denoted by 147, and it is.

168 theeffect will be to lock the sprocket '164 .against rotation on the screw 163, in an obvious manner, las clearly shown in Fig. 6. i

In order to impart rotation to the screw 163, the sprocket 164 is connected, by means of a chain 169, with another sprocket wheel 170 l('see/ Fig. 2) that is fixedon'the end of the screw 126,l (see Fig. 5)v so as to be driven thereby. In the present instance the sprock- `et 164 is shown as being one-half the diameter of the ,sprocket 170 so that vthe screw' 163 will be rotated twice. as fast as the screw 126, and hence the pattern'147 will be fed transversely of the machineat a rate of speedjust double that of the'tool carrying frame; it` being understood that the pitch of the threads on the screws 163 and 126 is the same.` rlQhe effect of this feeding of thev pattern in the same direction as and at a speed twice as great as the tool carrying'frame will be to engender vrelative opposite movement between thepattern and the tracer 171 so as to enable a left hand die toy 'be cut from a right,hand pattern and vice versa. `When it is `desired to cut a right from a right or a left from a left, the pin 166 may be'disengaged from'the sprocket 164 so that the latter will idle upon the screw 163. `It will also be understood that 'the protruding ends of the screws 126 and 163 are squared for the reception of a crank handle lin order to permit manual adjustment.y

As will be understood by any one familiar with this art, during the operation of the machine the tool carrying frame 47, 48 will oscillate gently about its pivots 63, 63 or 64, 64

according to the direction of: travel of the tool carrying frame upon the bed 28, and

this loscillation will permit the tracerto folv low the undulations existing in thel configurati'on of the pattern, in` order that the cutting tool may"correspondingly cut the work. y1t is highly desirable that this action of the tool carrying frame'should be gentle and steady; and, to this end, the saidQfraine iscounterbalanced by a weight 172 (see ig.

2y that is connected by means of a strap 17 3 to a pulley 174 ,mounted in a bracket 175 bolted to the s anchion 37. Another strap extends from the pullev 174 to another pulley 177 which is held in the upper end of the l bracket 61; the end of the said str-ap'176 being bolted tothe frame members 48, aslindicated at 178:v 4, ,I 'I In View ot then fact that, thefoperation of the vseveral'elementst comprisingthe machine, u

has 'been `described 'in connection with nthe detailing of their mechanical construction to restate the operation of the nachine as a Hvhole; since fthe same will be easily understood 4by any operative in this industry.

65'; thepinlco'has-i/ts end in the hole/, Attention may. however, 'be directed tothe and arrangement, it is not deeiried necessary fashionedv therein,

meets asubstantially vertical obstruction in fact that when the tool carrying frame is' moving to the right, in Fig. 2it is pivoted to ting tool to\cut a corresponding face injthe.

work. When the tool carrying trame is moving tothe left, in Fig. .12 it is fulcrumed on the pins 63, 63 and these pins are`arranged" ab'ove the upper face of the'pattern, and hence above the mean depth of any figure so'that, when the tracer the pattern an upward pull will be'exertedon lthe tracer at an angle of substantially 15 degrees uto the plane of traveluof the tool carryingframepthis upward pull accomplishing the same* result as the fupward push just described. By means of the adjusting rod 'the carriage 38 may be m'oved so as to 30- hold the tool carrying frame in the proper relationship with respect-to the pattern and work to be cut.

' The two adjustments provided for the patltern' -support and -work support, which` vamount to universal adjustmentsfacilitate the effecting of various angular cuts which form.

When the machine is outl of use it may be locked by means of acotter 179 (see Fig. 5)-

which is'nounted in the top ofS the carriage` 38 ,and has its lower end fitted to engage a 4correspondingly shaped recess 'in rthe upper rocking barl 65. .The c'otter 17 9 is held in its inoperative position by a laterally projecting pin 180 that restsupon the top ofthe-mount@ ing, 181 which carries the ctter. This mounting` has a channel-'182 formed in .the bore thereof with which the pin 190 may bebrought into coincidence in order toperinit the Cotter to drop t its interlocking position with respect to the bar 65. As xa 'further step in locking the machine out of operative' adjustment the sleeve 16 'may-"be withdrawn vfrom its uclutching connection ywith the sleeve` 13 and held in said positionby a set screw 17, described.

'as already It may-be" noted that 'in case it 'shouldtbe desired 4to eliminate the double pivoting ac-` y tion ofthe frame 47, 48 andemploy themember 482of the frame as .a simple, oscillating tool carrying frame, the following procedure may be ado tedi. The c'otter 179r maybe dropped into interlockingposition-with respect -"to the bar and the cap screw 56 and iiller 57 removed. This arrangement locks the member 47 against movement while it permits the member 48 to oscillate about the pivots 54, 55.

l desire it to be understood kthat various changesinay-be resorted to inithe form, construction, and arrangement of the several parts without departing from the spirit and' v l cope of my invention, and hence I do notv intend to be limited to the details herein shown and described eiicept as they may be included in the claims.

What I claim is l. A machine of the character described comprising, a tool carrying frame, means for supporting said frame, means for c'ar- PLS o rying said frame supporting means, andf n one direction and supporting means on Yanother direction.

for moving the frame comprising, a -tool carrying frame, stationary means for supporting the work, means for supporting a pattern, and means for moving the pattern support with respect to.

the frame and the work support. f 3. A machineof the character described comprising, a tool carrying frame, means for moving the said frame, stationary means for supporting the work, means for supporting a pattern, and means for "moving the pattern support with respect to the frame and work.

4. A machine ofthe character described moving the said frame, means for supporting a pattermand means for moving-the n e K pattern 1n the same direction as and at a means for supporting a pattern, and meansA for moving the pattern in the same direction as one dine o movement pf the said frame and atl a greater speed than the-said last named movement of the frame. f .7. A'machine of the,-"character describe comprising, a-tool' carrying frame,"means for reciprcatingthe said rec/tion and. yfor eedin it inl another direcftion, means `for suppoting 'a' pattern, and

meansfor feeding the pattern supportin' vits carrying means inl me in one di'- mechanism for moving the last named means 2l A machine of the character described ico comprising, a tool carrying frame, means for the machine is frequentlycalled upon -to perthe saine direction as the feed pf the said'J of. the frame. v

8. A machine of the ,character described frame ,and -atj-a greatenspeed thanthe" feed l fa comprising, a toolV carrying frame, means for dreciprocating the said frame in one d1- rcction andf for feeding it in another direca` jtion, stationary means for supportinga die, means for supporting a pattern, and means for feeding the pattern support in the same direction as the feed of the said frame and at a greater rate of speed than the feed of the frame. l. A

9. A" machine'of the character described comprising, an oscillatable tool carrying frame, means for supportingvthe work yand a pattern, and means for fulcruming the yframe at two points at one side-of the work and pattern.

l0. A machine of t/he character described comprising, an oscillatable tool carrying.r

frame, means for supporting the work' and a1 pattern, and means for fulcrummg the 'frame at two points one above and one below'.v the mean depth of the figure fashioned in the pattern. 11. A machine of the characterdescribed comprising, an oscillatable tool carrying frame, means for supporting the work and a pattern, and means for fulcrumingtlie lframe at two points at one side of the work `and pattern, one of said points being above and the other below the mean depth of the figure fashioned in the pattern.

12. A machine of the character described comprising,- an oscillatable tool carrying frame, means for supporting the work and a pattern, and automatic means for fulcrunr' ing the fname at two'p'ointsv at one side of Y the work and pattern.-

L, 13. A machine of frame, meansffor supporting/the work and a pattern, and automatic means for fulcruming the frame at two points one above and onebelow the mean depth of the igureyfashioned in the pattern.

14. A machine of the character described comprising, an oscillatable tool carrying framenieans for supporting thework and a pattern, and automatic means for fulcruming theI rame attwo points at one side of the wor and pattern, one of said points being above and the other -below the mean y depth of the figure fashioned in 'the,pattern-.

i "frame, means for supporting the work an 15. 'Amachine of thecharacter described comprising, an oscillatable` tool carryin l a patterni and means for alternately fullS cruming t 1e frameh at two points at one side .of the work and pattern.

16. A machine of the character) described comprising, anoscillatablle' tool carryingV frame, means for siipporting thework and a pattern, and meansrfor alternately fulcruming the frame at two points one above and one below the meandepth of the figure fashioned in the pattern.

17. A machine of he character described comprising, an 'oscillatable tool 'Ccarrying" he character described!l comprising, an oscillatable; tool carrying frame, means for supporting the work and a* pattern, and means for alternately fulcruming 'the frame at two points atv one side of the work and pattern, one o'f said points beingnbove and the bther below the mean depth of the figure fashioned in the pattern. 18. A machine 4of the character described comprising, an` oscillatabdlwe tool carrying'l frame, means for supportlng the work and .a pattern, and automatic meansl for alternately fulcruming the frame at two .points "ai: one side of the work and patter'n 1 9. A machine of the character described comprising, anJ oscillatable tool carrying fra`me, means for supporting the work a'ndf a pattern, and automatic means for alternately fulc1uming the yfra-me aty two points f one above and one below the neandepth of the figure fashioned in the pattern. J

20. A machine ofthe character described comprising, an oscillatable tool carrying Lf rame,`means for supporting the work and a pattern, and automatic means for alternately fulcrummg the frame at two pomtsl atone side.of the work and pattern, one

of saidpoints being above and the otherv `below the meairfdepth ofv the figure fashioned the pattern.

21. A machine of the.. character described comprising, an oscillatable tool carrying frame, means for supporting the work and a pattern, and means for fulcruming the frame l at-.two points one above and one below the Amean depth of the'iigure fashioned in the pattern, said points being substantiallyjthe same distance above and below, respectively, lthe said mean depth:

v22. A machine of the characterl described comprising, an oscillatable tool carrying frame, means;v for supporting the work and a pattern, and means for automatically kfulcruming" the frame at two points one above and one below the mean depth of the ligure fashioned -in ythe pattern, said points being substantiallg7 the sariie'distance above and below, respectively., the sai'dy mean depth.`

'23. A machine of the character described comprising, an -oscillatable tool carrying frame, means for supporting'the work and `a pattern, 'and means for fulcruming the the frame is pivoted, a hollow slidable clutch engage said ba'rs, and means o Kmember having its opposite ends fitted to engage said barsand means operating Within said member for sliding/it in eitherdirection for locking either of said bars against rocking movement. A,

25. A machine of the character described comprising, an oscillatable tool carrying `frame, means for sliding said frame,L means for supporting the work and a pattern, and means for fulcruming the frame at two points, said last named means comprising a slidable .clutch memberhaving its opposite ends litt'ed to kengage different parts of the said frame, and means actuated by the means which slides the frame for sliding the said i clutch member in either direction for engaging said frame.

' ,26s A machine of the charater described comprising, an Voseillatable ,tool carrying `frame, means for sliding said frame,

,means -for supporting the' Work and a comprising, a tool carrying frame, means .for moving the said rame,\a support for the work, a support for a pattern, one of said supports being stationary and means for moving the other support with respect to the frame and the stationary support.

28. A machine of the character 4described p comprising, a tool carrying frame, means Afor moving thesaid frame, a support for the Work, a support for a pattern, and means for moving one of said supports in the same direction; as and at a greater speed than the said frame, .e

29. A machine of the character described comprising, a tool carrying frame, means for movingr the said frame, a support for the work, a support for a pattern, one of Said' supports being stationary, and lmeans `for moving the other support in the same direction as and at -a greater speed than the said frame. I

30j A machine of the character described comprising, a tool carrying frame', means for moving the said frame, a support for the work, a support for a pattern, and means for moving one of said supports in the same direction as the frame. and with respect to the frame and the other support.

31. A machine of the character described comprising, an oscillatable tool carrying iframe, means for supporting the work and a pattern and means for f ulcruming the framel at two points, said last named means comprising a slidable clutch .member movable in the saine direction as the oscillation of the frame, said clutchV member having its opposite ends fitted to engage diiferent parts ofA the said frame, and means for sliding said clutch member in either. direction for engaging said frame. Y

In testimony, that l claim the foregoing as my invention, I have signed my name this 5th day of October, 1918.

Y WALTER E. 'SARGEN Witness: JOSEPH E. PACK. 

